Prospectivity Mapping of Mineral Deposits in Northern Norway Using Radial Basis Function Neural Networks
In this paper, the radial basis function neural network (RBFNN) is used to generate a prospectivity map for undiscovered copper-rich (Cu) deposits in the Finnmark region, northern Norway. To generate the input data for RBFNN, geological and geophysical data, including up to 86 known mineral occurren...
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2587743 2023-05-15T16:13:38+02:00 Prospectivity Mapping of Mineral Deposits in Northern Norway Using Radial Basis Function Neural Networks Juliani, Cyril Jerome Ellefmo, Steinar Løve 2019 http://hdl.handle.net/11250/2587743 https://doi.org/10.3390/min9020131 eng eng MDPI Minerals. 2019, 9 (2), . urn:issn:2075-163X http://hdl.handle.net/11250/2587743 https://doi.org/10.3390/min9020131 cristin:1680330 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 15 9 Minerals 2 Journal article Peer reviewed 2019 ftntnutrondheimi https://doi.org/10.3390/min9020131 2019-09-17T06:54:55Z In this paper, the radial basis function neural network (RBFNN) is used to generate a prospectivity map for undiscovered copper-rich (Cu) deposits in the Finnmark region, northern Norway. To generate the input data for RBFNN, geological and geophysical data, including up to 86 known mineral occurrences hosted in mafic host-rocks, were combined at different resolutions. Mineral occurrences were integrated into “deposit” and “non-deposit” training sets. Running RBFNN on different input vectors, with a k-fold cross-validation method, showed that increasing the number of iterations and radial basis functions resulted in: (1) a reduction of training mean squared error (MSE) down to 0.1, depending on the grid resolution, and (2) reaching correct classification rates of 0.9 and 0.6 for training and validation, respectively. The latter depends on: (1) the selection of “non-deposit” training data throughout the study area, (2) the scale at which data was acquired, and (3) the dissimilarity of input vectors. The “deposit” input data were correctly identified by the trained model (up to 83%) after proceeding to classification of non-training data. Up to 885 km2 of the Finnmark region studied is favorable for Cu mineralization based on the resulting mineral prospectivity map. The prospectivity map can be used as a reconnaissance guide for future detailed ground surveys. Prospectivity Mapping of Mineral Deposits in Northern Norway Using Radial Basis Function Neural Networks publishedVersion © The Authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). Article in Journal/Newspaper Finnmark Northern Norway Finnmark NTNU Open Archive (Norwegian University of Science and Technology) Norway Minerals 9 2 131 |
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Open Polar |
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NTNU Open Archive (Norwegian University of Science and Technology) |
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ftntnutrondheimi |
language |
English |
description |
In this paper, the radial basis function neural network (RBFNN) is used to generate a prospectivity map for undiscovered copper-rich (Cu) deposits in the Finnmark region, northern Norway. To generate the input data for RBFNN, geological and geophysical data, including up to 86 known mineral occurrences hosted in mafic host-rocks, were combined at different resolutions. Mineral occurrences were integrated into “deposit” and “non-deposit” training sets. Running RBFNN on different input vectors, with a k-fold cross-validation method, showed that increasing the number of iterations and radial basis functions resulted in: (1) a reduction of training mean squared error (MSE) down to 0.1, depending on the grid resolution, and (2) reaching correct classification rates of 0.9 and 0.6 for training and validation, respectively. The latter depends on: (1) the selection of “non-deposit” training data throughout the study area, (2) the scale at which data was acquired, and (3) the dissimilarity of input vectors. The “deposit” input data were correctly identified by the trained model (up to 83%) after proceeding to classification of non-training data. Up to 885 km2 of the Finnmark region studied is favorable for Cu mineralization based on the resulting mineral prospectivity map. The prospectivity map can be used as a reconnaissance guide for future detailed ground surveys. Prospectivity Mapping of Mineral Deposits in Northern Norway Using Radial Basis Function Neural Networks publishedVersion © The Authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). |
format |
Article in Journal/Newspaper |
author |
Juliani, Cyril Jerome Ellefmo, Steinar Løve |
spellingShingle |
Juliani, Cyril Jerome Ellefmo, Steinar Løve Prospectivity Mapping of Mineral Deposits in Northern Norway Using Radial Basis Function Neural Networks |
author_facet |
Juliani, Cyril Jerome Ellefmo, Steinar Løve |
author_sort |
Juliani, Cyril Jerome |
title |
Prospectivity Mapping of Mineral Deposits in Northern Norway Using Radial Basis Function Neural Networks |
title_short |
Prospectivity Mapping of Mineral Deposits in Northern Norway Using Radial Basis Function Neural Networks |
title_full |
Prospectivity Mapping of Mineral Deposits in Northern Norway Using Radial Basis Function Neural Networks |
title_fullStr |
Prospectivity Mapping of Mineral Deposits in Northern Norway Using Radial Basis Function Neural Networks |
title_full_unstemmed |
Prospectivity Mapping of Mineral Deposits in Northern Norway Using Radial Basis Function Neural Networks |
title_sort |
prospectivity mapping of mineral deposits in northern norway using radial basis function neural networks |
publisher |
MDPI |
publishDate |
2019 |
url |
http://hdl.handle.net/11250/2587743 https://doi.org/10.3390/min9020131 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Finnmark Northern Norway Finnmark |
genre_facet |
Finnmark Northern Norway Finnmark |
op_source |
15 9 Minerals 2 |
op_relation |
Minerals. 2019, 9 (2), . urn:issn:2075-163X http://hdl.handle.net/11250/2587743 https://doi.org/10.3390/min9020131 cristin:1680330 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/min9020131 |
container_title |
Minerals |
container_volume |
9 |
container_issue |
2 |
container_start_page |
131 |
_version_ |
1765999437750992896 |